notarytool-2024-07-23-143951.ips I notarytool-2024-07-23-105410.ips have two Mac machines and running the same Python script as a CGI script in an Apache webserver (httpd) installed via Homebrew. The Python script calls the subprocess.run() method to call the notarytool via xcrun. On one server the script runs as expected in the webserver environment and on the other machines it gets an exit code (-)4; SIGILL. On the machines where it fails, the notarytool command works from console, as expected. Additionally, it works if I run the script directly with Python in the console. I launch the same command in a Perl script in the webserver and the same exit code / issue occured. I have the same installed version and setup on both servers for Homebrew Apache Webserver (httpd) Python version (3.9.6) xcrun --version: xcrun version 61. xcrun notarytool --version: 1.0.0 (27) the Mac machines are identical, both are bought and set up at the same time The see similar topics at: https://forums.developer.apple.com/forums/thread/724995 Notarytool was used on a machine as an agent via Jenkins job https://github.com/moses-palmer/pynput/issues/366#issuecomment-1364470827 used Python, gets the same exit code, used in multi-thread environment (maybe like a webserver)